PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

384018Ring,thrust,turbine

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 2840-00-765-9974 · FSC 2840 · No Item Name Available
Verified by PartsTable
NSN 2840-00-765-9974 — this item is cataloged by the U.S. Government under National Stock Number 2840-00-765-9974. Primary manufacturer part number: 384018.
Features
  • Ring,thrust,turbine — FSC 2840
  • Surface Treatment: CHROMIUM
  • Special Test Features: ROCKWELL HARDNESS C30 38 OR EQUIVALENT
  • Functional Description: .020" RADIUS MAXIMUM
  • Overall Diameter: 4.737 INCHES MINIMUM AND 4.743 INCHES MAXIMUM IN
  • Supplementary Features: CHROMIUM PLATE PER AMS 2406 .0003-.0005" THICK
  • Material: STEEL CORROSION RESISTING
  • 1 verified cross-reference
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Ring,thrust,turbine, cataloged under National Stock Number 2840-00-765-9974, is classified within Federal Supply Class 2840 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2840-00-765-9974
Primary Part Number384018
Item NameRing,thrust,turbine
FSC / FSG2840 / 28 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Surface TreatmentCHROMIUM
Special Test FeaturesROCKWELL HARDNESS C30 38 OR EQUIVALENT
Functional Description.020" RADIUS MAXIMUM
Overall Diameter4.737 INCHES MINIMUM AND 4.743 INCHES MAXIMUM IN
Supplementary FeaturesCHROMIUM PLATE PER AMS 2406 .0003-.0005" THICK
MaterialSTEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2520-00-414-5571D504 INTERCHANGEABLE
Disk,clutch,vehicular
Perfection Clutch
Cross-Reference Index
Part NumberManufacturer
384018 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
2520-00-414-5571INTERCHANGEABLE
DISK,CLUTCH,VEHICULAR
D504

Frequently Asked Questions

What is NSN 2840-00-765-9974?

NSN 2840-00-765-9974 is a Ring,thrust,turbine, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2840 (No Item Name Available). Status: active.

What are the part numbers for NSN 2840-00-765-9974?

NSN 2840-00-765-9974 has 1 cross-referenced part number: 384018 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 2840-00-765-9974?

There is 1 known substitute for 2840-00-765-9974: 2520-00-414-5571. Verify interchangeability with system specifications before substitution.

What are the specifications of 384018?

Key specifications for 384018: Surface Treatment: CHROMIUM; Special Test Features: ROCKWELL HARDNESS C30 38 OR EQUIVALENT; Functional Description: .020" RADIUS MAXIMUM; Special Features: MATERIAL: AMS 5613 OR AMS 5504 STAINLESS STEEL. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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